Quick release connecting device

ABSTRACT

A quick release connecting device includes an actuating retainer having an internal receiving space, at least one first push section and a retaining section for detachably engaging with a first object; a fixing member including a body portion movably associated with the receiving space and a pivot portion formed on the body portion for detachably connecting with a second object; pin connection means connecting the body portion to the receiving space for the actuating retainer and the fixing member to move relative to each other within a limited range; an elastic element having two ends pressed against an inner wall surface of the receiving space and the body portion to control the limited movement of the actuating retainer and the fixing member and return them to their original positions. With the quick release connecting device, two mating objects can be conveniently repeatedly connected to and separated from each other.

CROSS-REFERENCE TO RELATED APPLICATION

This non-provisional application claims priority under 35 U.S.C. §119(a)on Patent Application No(s). 103113314 filed in Taiwan, R.O.C. on Apr.10, 2014, the entire contents of which are hereby incorporated byreference.

FIELD OF THE INVENTION

The present invention relates to a quick release connecting device, andmore particularly to a quick release connecting device that enablesconvenient and repeated assembling and separation of a circuit board, adrawer, or a window to and from a corresponding rack, chassis, cabinetor window frame.

BACKGROUND OF THE INVENTION

To enable convenient assembling and fastening of a circuit board to arack, and to enable easy disassembling of the circuit board from therack when necessary, a quick release mechanism is usually provided onthe circuit board or the rack. Various types of quick release mechanismsare known, and each type of circuit board has a corresponding quickrelease mechanism designed for it. To enable two mating objects, such asthe circuit board and the rack, to be repeatedly assembled to andseparated from each other in a quick and convenient manner, it isdesirable to develop an improved quick release connecting device thatincludes means to assist in pushing away a first one of the two matingobjects, so that the second object can be easily pulled out of the firstobject.

SUMMARY OF THE INVENTION

In view that the prior art quick release mechanisms are not perfect foruse, it is tried by the inventor to develop an improved quick releaseconnecting device to enable convenient and repeated assembling andseparation of a circuit board, a drawer, a window, etc. to and from acorresponding rack, chassis, cabinet, window frame, etc.

A primary object of the present invention is to provide a quick releaseconnecting device that includes an actuating retainer and a fixingmember limitedly movably assembled to each other, so that a secondobject, such as a circuit board, a drawer or a window, detachablyconnected to a first object, such as a rack, a chassis, a cabinet or awindow frame, via the actuating retainer and the fixing member can beconveniently and repeatedly assembled to and separated from each other.

To achieve the above and other objects, the quick release connectingdevice according to a preferred embodiment of the present inventionincludes an actuating retainer having an internal receiving space and aretaining section for detachably engaging with a first object; a fixingmember including a body portion movably associated with the receivingspace and a pivot portion formed on the body portion for detachablyconnecting with a second object; pin connection means connecting thebody portion to the receiving space for the actuating retainer and thefixing member to move relative to each other within a limited range; andan elastic element disposed in the receiving space with two ends pressedagainst an inner wall surface of the receiving space and the bodyportion to control the limited movement of the actuating retainer andthe fixing member and return them to their original positions.

In an operable embodiment of the quick release connecting deviceaccording to the present invention, the fixing member includes a handpush section formed on the body portion.

In an embodiment of the quick release connecting device of the presentinvention, the actuating retainer and the fixing member connected toeach other via the pin connection means are slidable relative to eachother within a limited range.

In the above embodiment of the quick release connecting device of thepresent invention, the actuating retainer includes a pin connection slotcommunicating with the receiving space, and the pin connection means islocated in the pin connection slot.

In an operable embodiment of the quick release connecting device of thepresent invention, the pin connection slot is a long slide slot formedon one or two lateral walls of the receiving space; and the pinconnection means is slidable in the long slide slot to thereby bring theactuating retainer and the fixing member to slide relative to each otherwithin a limited range.

In another embodiment of the quick release connecting device of thepresent invention, the body portion of the fixing member includes a longslide hole communicable with the receiving space; and the pin connectionmeans is slidable in the long slide hole to thereby bring the actuatingretainer and the fixing member to slide relative to each other within alimited range.

In an embodiment of the quick release connecting device of the presentinvention, the actuating retainer and the fixing member connected toeach other via the pin connection means are rotatable relative to eachother within a limited angle.

In the above embodiment of the quick release connecting device of thepresent invention, the actuating retainer includes a pin connection slotcommunicating with the receiving space, and the pin connection means islocated in the pin connection slot.

In an operable embodiment of the quick release connecting device of thepresent invention, the pin connection slot is a locating hole formed onone or two lateral walls of the receiving space; and the pin connectionmeans is rotatable in the locating hole to thereby bring the actuatingretainer and the fixing member to rotate relative to each other within alimited angle.

In an embodiment of the quick release connecting device of the presentinvention, the pin connection means includes a cylindrical pinintegrally formed with or additionally assembled to the body portion ofthe fixing member.

In the above embodiment of the quick release connecting device of thepresent invention, the pin connection means further includes a pinholding hole formed on the body portion of the fixing member; and thecylindrical pin is inserted in, riveted to, expansion-fitted in, gluedto or screwed into the pin holding hole.

In an embodiment of the quick release connecting device of the presentinvention, the pin connection means includes a cylindrical pinintegrally formed with or additionally assembled to the actuatingretainer.

In the above embodiment of the quick release connecting device of thepresent invention, the pin connection means further includes a pinholding hole formed on the actuating retainer; and the cylindrical pinis inserted in, riveted to, expansion-fitted in, glued to or screwedinto the pin holding hole.

In another embodiment of the quick release connecting device of thepresent invention, the pin connection means includes a cylindrical pinintegrally formed with or additionally assembled to the actuatingretainer; and the cylindrical pin is transversely extended through thereceiving space.

In the above embodiment of the quick release connecting device of thepresent invention, the pin connection means further includes at leastone pin holding hole formed on the actuating retainer to communicatewith the receiving space; and the cylindrical pin is inserted in,riveted to, expansion-fitted in, glued to or screwed into the pinholding hole.

In an embodiment of the quick release connecting device of the presentinvention, the retaining section on the actuating retainer is a hookdirected leftward or rightward relative to the actuating retainer.

In the above embodiment of the quick release connecting device of thepresent invention, the hook includes a beveled guide surface and ahooking surface connected to a lower edge of the beveled guide surface.

In an embodiment of the quick release connecting device of the presentinvention, the actuating retainer includes at least one first pushsection.

In an embodiment of the quick release connecting device of the presentinvention, the fixing member includes at least one second push section.

In an embodiment of the quick release connecting device of the presentinvention, the receiving space includes a slide space, and the bodyportion of the fixing member is movable in the slide space.

In an embodiment of the quick release connecting device of the presentinvention, the elastic element is a coil spring, a spring plate or anelastic bar.

In an embodiment of the quick release connecting device of the presentinvention, the pivot portion of the fixing member can be one of aprotruded block, a retaining block and a through hole integrally formedwith or additionally assembled to the body portion.

In an embodiment of the quick release connecting device of the presentinvention, the pivot portion is inserted in, snapped fitted onto,riveted to, expansion-fitted onto or screwed to the second object to bemovably connected to the second object.

In the quick release connecting device of the present invention, theactuating retainer and the fixing member are made of a material selectedfrom the group consisting of a plastic material and a metal material.

To use the quick release connecting device of the present invention,first movably connect the pivot portion of the fixing member to thesecond object, such as a circuit board, a drawer or a window. Since theactuating retainer and the fixing member are movably assembled to eachother, at least one of them can be quickly detachably engaged with atleast a first object, such as a chassis, a rack, a cabinet or a windowframe. More specifically, the retaining section of the actuatingretainer and/or the second push section of the fixing member can bequickly detachably engaged with the first object to thereby quicklyconnect the second object to the first object. On the other hand, toseparate the second object from the first object, simply push the firstpush section for the retaining section to disengage from the firstobject and pivotally turn the fixing member for the second push sectionto push away the first object, and the second object is easily separatedfrom the first object. Therefore, with the quick release connectingdevice of the present invention, the second object can be repeatedlyquickly assembled to and separated from the first object.

BRIEF DESCRIPTION OF THE DRAWINGS

The structure and the technical means adopted by the present inventionto achieve the above and other objects can be best understood byreferring to the following detailed description of the preferredembodiments and the accompanying drawings, wherein

FIG. 1 is an assembled perspective view of a quick release connectingdevice according to a first preferred embodiment of the presentinvention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a partially sectioned front view of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is an assembled front view of a first variant of the quickrelease connecting device according to the first preferred embodiment ofthe present invention, showing it further includes a hand push section;

FIG. 6 is an assembled perspective view of a second variant of the firstpreferred embodiment of the present invention;

FIG. 7 is an exploded view of FIG. 6;

FIG. 8 is a partially sectioned front view of FIG. 6;

FIG. 9 is a partially sectioned front view of a third variant of thefirst preferred embodiment of the present invention, showing two firstpush sections are included in the quick release connecting device;

FIG. 10 is an assembled partially sectioned front view of a quickrelease connecting device according to a second preferred embodiment ofthe present invention;

FIG. 11 is an assembled perspective view of the quick release connectingdevice according to the second preferred embodiment of the presentinvention;

FIG. 12 is an assembled partially sectioned front view of a variant ofthe second preferred embodiment of the present invention, showing anelastic plate and a different retaining section are included in thequick release connecting device;

FIGS. 13A-13D show the quick release connecting device according to thefirst preferred embodiment of the present invention is connected to twoobjects and can be operated to quickly release the two objects from eachother; and

FIGS. 14A-14D show the quick release connecting device according to thesecond preferred embodiment of the present invention is connected to twoobjects and can be operated to quickly release the two objects from eachother.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will now be described with some preferredembodiments thereof and by referring to the accompanying drawings. Forthe purpose of easy to understand, elements that are the same in thepreferred embodiments are denoted by the same reference numerals.

FIGS. 1 to 9 show a quick release connecting device according to a firstpreferred embodiment of the present invention, which is configured toenable limited slide, i.e. to slide within a limited range; and FIGS. 10to 12 show a quick release connecting device according to a secondpreferred embodiment of the present invention, which is configured toenable limited rotation, i.e. to rotate within a limited angle. Asshown, in both of the first and second preferred embodiments, the quickrelease connecting device of the present invention includes an actuatingretainer 1 and a fixing member 2 movably assembled to the actuatingretainer 1. The actuating retainer 1 can be made of a plastic materialor a metal material; it internally defines a receiving space 11 andincludes a retaining section 12 for detachably engaging with a firstobject 5 and at least one first push section 14. The fixing member 2 canbe made of a plastic material or a metal material; it includes a bodyportion 21 and a pivot portion 22 formed on an outer end of the bodyportion 21. The body portion 21 has an inner end movably associated withthe receiving space 11 of the actuating retainer 1; and the pivotportion 22 is located outside the receiving space 11 for detachablyconnecting with a second object 6. The first push section 14 can be aprotrusion outward projected from any side of the actuating retainer 1.As shown in FIG. 13B, by applying a force against the first push section14, the actuating retainer 1 can be moved to release the retainingsection 12 from the first object 5, allowing the second object 6 toseparate from the first object 5. The quick release connecting device ofthe present invention further includes pin connection means 3 and anelastic element 4. The pin connection means 3 enables connection of thebody portion 21 of the fixing member 2 to the receiving space 11 of theactuating retainer 1, such that the actuating retainer 1 and the fixingmember 2 in the first and the second preferred embodiment are slidableand rotatable, respectively, relative to each other within a limitedrange and angle. The elastic element 4 is disposed in the receivingspace 11 of the actuating retainer 1, or can be disposed at a selectedposition, with an end pressed against an inner wall surface of thereceiving space 11 and another opposite end against the body portion 21of the fixing member 2. The elastic element 4 enables and controlslimited sliding or rotation of the actuating retainer 1 and the fixingmember 2 relative to each other, and can elastically push the actuatingretainer 1 and the fixing member 2 back to their original positions.

Please refer to FIG. 5 that is an assembled front view showing a firstvariant of the first preferred embodiment of the present inventionfurther includes a hand push section 24 provided on the body portion 21of the fixing member 2. The hand push section 24 can be a protrusiondownward projected from a lower side of the body portion 21. The handpush section 24 and the first push section 14 are preferably directed tothe same direction. In FIG. 5, the hand push section 24 and the firstpush section 14 are illustrated as directing downward. With thisarrangement, a user may conveniently move the actuating retainer 1toward the fixing member 2 by pressing one finger, such as the thumb,against an axially outer side (i.e. the left side in the drawing) of thefirst push section 14 while pressing another finger, such as the indexfinger, against an axially outer side (i.e. the right side in thedrawing) of the hand push section 24.

Please refer to FIGS. 1 to 4, in which the quick release connectingdevice according to the first preferred embodiment of the presentinvention is shown. As shown, in the first preferred embodiment, theactuating retainer 1 and the fixing member 2 are held to each other viathe pin connection means 3 to allow limited sliding of them relative toeach other, and accordingly, the retaining section 12 is slidablyengaged with or released from the first object 5. More specifically, theactuating retainer 1 is internally provided with a pin connection slot13, which communicates with the receiving space 11, and the pinconnection means 3 is located in the pin connection slot 13. The pinconnection slot 13 can be a long slide slot 131 formed on one or twolateral walls of the receiving space 11. When the pin connection means 3slides in the long slide slot 131, the actuating retainer 1 and thefixing member 2 are brought to slide relative to each other within alimited range. FIGS. 6 to 8 show a second variant of the quick releaseconnecting device according to the first preferred embodiment of thepresent invention. In the second variant, the body portion 21 of thefixing member 2 is formed with a long slide hole 211, which iscommunicable with the receiving space 11, and the pin connection means 3is slidable in the long slide hole 211 to thereby bring the actuatingretainer 1 and the fixing member 2 to slide relative to each otherwithin a limited range.

Please refer to FIGS. 10 to 12, in which the quick release connectingdevice according to the second preferred embodiment of the presentinvention is shown. As shown, in the second preferred embodiment, theactuating retainer 1 and the fixing member 2 are held to each other viathe pin connection means 3 to allow limited rotating of them relative toeach other, and accordingly, the retaining section 12 is rotatablyengaged with or released from the first object 5. More specifically, theactuating retainer 1 is also internally provided with a pin connectionslot 13, which communicates with the receiving space 11, and the pinconnection means 3 is located in the pin connection slot 13. Accordingto an operable embodiment, the pin connection slot 13 can be a locatinghole 132 formed on one or two lateral walls of the receiving space 11.When the pin connection means 3 rotates in the locating hole 132, theactuating retainer 1 and the fixing member 2 are brought to rotaterelative to each other within a limited angle.

In the first preferred embodiment, as can be seen in FIGS. 2 and 4, andin the second preferred embodiment, as can be seen in FIGS. 10 and 12,the pin connection means 3 can include a cylindrical pin 31 integrallyformed with or additionally assembled to the body portion 21 of thefixing member 2, and a pin holding hole 32 formed on the body portion 21of the fixing member 2. The cylindrical pin 31 is inserted in, snappedfitted in, riveted to, expansion-fitted in, glued to or screwed into thepin holding hole 32. Alternatively, the pin connection means 3 caninclude a cylindrical pin 31 integrally formed with or additionallyassembled to the actuating retainer 1, and a pin holding hole 32 formedon the body portion 21 of the fixing member 2. Similarly, thecylindrical pin 31 is inserted in, snapped fitted in, riveted to,expansion-fitted in, glued to or screwed into the pin holding hole 32.By transversely and slidably setting the cylindrical pin 31 of the pinconnection means 3 in the long slide slot 131 as in the first preferredembodiment, or by transversely and rotatably setting the cylindrical pin31 of the pin connection means 3 in the locating hole 132 as in thesecond preferred embodiment, it is able to achieve the limited slidingor the limited rotation, respectively, of the actuating retainer 1 andthe fixing member 2 relative to each other. Alternatively, in the secondvariant of the first preferred embodiment as shown in FIG. 6, the pinconnection means 3 includes a cylindrical pin 31 integrally formed withor additionally assembled to the actuating retainer 1 to transverselyextend through the receiving space 11, and at least one pin holding hole32 preferably formed on the actuating retainer 1 to communicate with thereceiving space 11. Again, the cylindrical pin 31 is inserted in,snapped fitted in, riveted to, expansion-fitted in, glued to or screwedinto the pin holding hole 32.

Please refer to FIGS. 1 to 12. In both of the first and the secondpreferred embodiment, the retaining section 12 on the actuating retainer1 can be a hook 121 directed leftward (see FIGS. 1-11) or rightward (seeFIG. 12) when viewing in front of the drawings. The hook 121 ispreferably a triangular or wedge shaped hook protruded from theactuating retainer 1, and it includes a beveled guide surface 122 and ahooking surface 123 connected to a lower edge of the beveled guidesurface 122. As can be seen in FIG. 13A, the beveled guide surface 122allows the actuating retainer 1 to be conveniently pressed into thefirst object 5, and the hooking surface 123 can firmly abut on an innerside of the first object 5 after the beveled guide surface 122 has beenmoved into the first object 5.

In the first preferred embodiment shown in FIGS. 1 to 9, the fixingmember 2 preferably includes at least one second push section 23. Asillustrated in the drawings, the second push section 23 can be lyingU-shaped to include two jaws 231 formed on an outer end thereof and aholding cavity 232 defined between the two jaws 231. Referring to FIG.13A, the two jaws 231 and the holding cavity 232 of the second pushsection 23 can be used to hold the first object 5 thereto. When it isdesired to release the second object 6 from the first object 5, simplyturn the quick release connecting device as a lever to push the firstobject 5 out of the second push section 23, and the second object 6 canbe easily released from the first object 5.

In the first preferred embodiment shown in FIGS. 1 to 9, the pivotportion 22 of the fixing member 2 is preferably a protruded block, aretaining block or a through hole integrally formed with or additionallyassembled to the body portion 21. As shown in FIG. 13A, the quickrelease connecting device of the present invention can be movablyconnected to the second object 6 via the protruded block, the retainingblock or the through hole. Preferably, the pivot portion 22 can beinserted in, snapped fitted onto, riveted to, expansion-fitted onto orscrewed to the second object 6, so that the quick release connectingdevice and the second object 6 are rotatably connected to each other.

In the first preferred embodiment shown in FIGS. 1 to 9, the receivingspace 11 in the actuating retainer 1 includes a straight andrectangular-sectioned slide space 111. The inner end of the body portion21 of the fixing member 2 is extended into the slide space 111 and isslidably held therein via the pin connection means 3, so that theactuating retainer 1 and the fixing member 2 are able to slide relativeto each other within a limited range. The elastic element 4 ispreferably a coil spring, as shown in FIGS. 2 to 6, but it can also bean elastic plate or an elastic bar. The elastic element 4 is disposed inthe slide space 111 with an end pressed against an inner wall surface ofthe slide space 111 and another end pressed against the body portion 21,such that the actuating retainer 1 and the fixing member 2 can sliderelative to each other within a limited range and then return to theirrespective original position under the elastic force of the elasticelement 4.

In the second preferred embodiment shown in FIGS. 10 to 12, thereceiving space 11 in the actuating retainer 1 includes an arcuate slidespace 112. The inner end of the body portion 21 of the fixing member 2is extended into the arcuate slide space 112 and is rotatably heldtherein via the pin connection means 3, so that the actuating retainer 1and the fixing member 2 are able to rotate relative to each other withina limited angle. The elastic element 4 is preferably a coil spring, asshown in FIG. 10, but it can also be an elastic plate as shown in FIG.12 or an elastic bar (not shown). The elastic element 4 is disposed inthe arcuate slide space 112 with an end pressed against an inner wallsurface of the slide space 112 and another end pressed against the bodyportion 21, such that the actuating retainer 1 and the fixing member 2can rotate relative to each other within a limited angle and then returnto their respective original position under the elastic force of theelastic element 4.

The first object 5 can be a rack, a chassis, a cabinet for drawers, awindow frame or other objects; and the second object 6 can be a circuitboard, a drawer, a window or other objects. FIG. 13A shows the quickrelease connecting device according to the first preferred embodiment ofthe present invention is movably assembled to the second object 6 viathe pivot portion 22 of the fixing member 2. Meanwhile, the retainingsection 12 of the actuating retainer 1 and the second push section 23 ofthe fixing member 2 are detachably engaged with two opposite sides ofthe first object 5, so that the second object 6 is located in andsidewardly movably connected to the first object 5 via the quick releaseconnecting device. When it is desired to separate the second object 6from the first object 5, as indicated by FIG. 13B, simply push the firstpush section 14 of the actuating retainer 1 with one hand, so that theactuating retainer 1 slides toward the fixing member 2 by a limitedrange to separate the retaining section 12 from one side of the firstobject 5. Then, as shown in FIG. 13C, utilize the principle of leverageto push the quick release connecting device for the fixing member 2 torotate about the pivot portion 22, bringing the second push section 23to push the other side of the first object 5 away from it. At thispoint, the second object 6 can be pulled to slide out of the firstobject 5. Finally, as shown in FIG. 13D, when the second object 6 isseparated from the first object 5 and the first push section 14 is nolonger subjected to a push, the elastic element 4 automatically pushesthe actuating retainer 1 to slide relative to the fixing member 5 backto its original position.

FIG. 14A shows the quick release connecting device according to thesecond preferred embodiment of the present invention is similarlymovably assembled to the second object 6 via the pivot portion 22 of thefixing member 2. Meanwhile, the retaining section 12 of the actuatingretainer 1 and the second push section 23 of the fixing member 2 aredetachably engaged with two opposite sides of the first object 5, sothat the second object 6 is located in and sidewardly movably connectedto the first object 5 via the quick release connecting device. When itis desired to separate the second object 6 from the first object 5, asindicated by FIG. 14B, simply push the first push section 14 of theactuating retainer 1 with one hand, so that the actuating retainer 1rotates relative to the fixing member 2 by a limited angle to separatethe retaining section 12 from one side of the first object 5. Then, asshown in FIG. 14C, utilize the principle of leverage to push the quickrelease connecting device for the fixing member 2 to rotate about thepivot portion 22, bringing the second push section 23 to push the otherside of the first object 5 away from it. At this point, the secondobject 6 can be pulled to slide out of the first object 5. Finally, asshown in FIG. 14D, when the second object 6 is separated from the firstobject 5 and the first push section 14 is no longer subjected to a push,the elastic element 4 automatically pushes the actuating retainer 1 torotate relative to the fixing member 5 back to its original position.

The present invention has been described with some preferred embodimentsthereof and it is understood that many changes and modifications in thedescribed embodiments can be carried out without departing from thescope and the spirit of the invention that is intended to be limitedonly by the appended claims.

What is claimed is:
 1. A quick release connecting device, comprising: anactuating retainer internally defining a receiving space, and includingat least one first push section and a retaining section for detachablyengaging with a first object; a fixing member movably assembled to theactuating retainer and including a body portion and a pivot portionformed on an outer end of the body portion; the body portion having aninner end movably associated with the receiving space of the actuatingretainer, and the pivot portion being located outside the receivingspace for detachably connecting with a second object; pin connectionmeans enabling connection of the body portion of the fixing member tothe receiving space of the actuating retainer, such that the actuatingretainer and the fixing member are movable relative to each other withina limited range; and an elastic element being disposed in the receivingspace of the actuating retainer with an end pressed against an innerwall surface of the receiving space and another opposite end against thebody portion of the fixing member; wherein the elastic element enablesand controls limited movement of the actuating retainer and the fixingmember relative to each other, and can push the actuating retainer andthe fixing member back to their original positions.
 2. The quick releaseconnecting device as claimed in claim 1, wherein the fixing memberincludes a hand push section formed on the body portion.
 3. The quickrelease connecting device as claimed in claim 1, wherein the actuatingretainer and the fixing member connected to each other via the pinconnection means are slidable relative to each other within a limitedrange.
 4. The quick release connecting device as claimed in claim 3,wherein the actuating retainer includes a pin connection slotcommunicating with the receiving space, and the pin connection meansbeing located in the pin connection slot.
 5. The quick releaseconnecting device as claimed in claim 4, wherein the pin connection slotis a long slide slot formed on one or two lateral walls of the receivingspace; and the pin connection means being slidable in the long slideslot to thereby bring the actuating retainer and the fixing member toslide relative to each other within a limited range.
 6. The quickrelease connecting device as claimed in claim 3, wherein the bodyportion of the fixing member includes a long slide hole communicablewith the receiving space; and the pin connection means being slidable inthe long slide hole to thereby bring the actuating retainer and thefixing member to slide relative to each other within a limited range. 7.The quick release connecting device as claimed in claim 1, wherein theactuating retainer and the fixing member connected to each other via thepin connection means are rotatable relative to each other within alimited angle.
 8. The quick release connecting device as claimed inclaim 7, wherein the actuating retainer includes a pin connection slotcommunicating with the receiving space, and the pin connection meansbeing located in the pin connection slot.
 9. The quick releaseconnecting device as claimed in claim 8, wherein the pin connection slotis a locating hole formed on one or two lateral walls of the receivingspace; and the pin connection means being rotatable in the locating holeto thereby bring the actuating retainer and the fixing member to rotaterelative to each other within a limited angle.
 10. The quick releaseconnecting device as claimed in claim 1, wherein the pin connectionmeans includes a cylindrical pin integrally formed with or additionallyassembled to the body portion of the fixing member.
 11. The quickrelease connecting device as claimed in claim 10, wherein the pinconnection means further includes a pin holding hole formed on the bodyportion of the fixing member; and the cylindrical pin being inserted in,riveted to, expansion-fitted in, glued to or screwed into the pinholding hole.
 12. The quick release connecting device as claimed inclaim 1, wherein the pin connection means includes a cylindrical pinintegrally formed with or additionally assembled to the actuatingretainer.
 13. The quick release connecting device as claimed in claim12, wherein the pin connection means further includes a pin holding holeformed on the actuating retainer; and the cylindrical pin being insertedin, riveted to, expansion-fitted in, glued to or screwed into the pinholding hole.
 14. The quick release connecting device as claimed inclaim 6, wherein the pin connection means includes a cylindrical pinintegrally formed with or additionally assembled to the actuatingretainer; and the cylindrical pin being transversely extended throughthe receiving space.
 15. The quick release connecting device as claimedin claim 14, wherein the pin connection means further includes at leastone pin holding hole formed on the actuating retainer to communicatewith the receiving space; and the cylindrical pin being inserted in,riveted to, expansion-fitted in, glued to or screwed into the pinholding hole.
 16. The quick release connecting device as claimed inclaim 1, wherein the retaining section on the actuating retainer is ahook directed leftward or rightward relative to the actuating retainer.17. The quick release connecting device as claimed in claim 16, whereinthe hook includes a beveled guide surface and a hooking surfaceconnected to a lower edge of the beveled guide surface.
 18. The quickrelease connecting device as claimed in claim 1, wherein the fixingmember includes at least one second push section.
 19. The quick releaseconnecting device as claimed in claim 16, wherein the fixing memberincludes at least one second push section.
 20. The quick releaseconnecting device as claimed in claim 1, wherein the receiving spaceincludes a slide space, and the body portion of the fixing member beingmovable in the slide space.
 21. The quick release connecting device asclaimed in claim 1, wherein the elastic element is selected from thegroup consisting of a coil spring, a spring plate and an elastic bar.22. The quick release connecting device as claimed in claim 1, whereinthe pivot portion of the fixing member can be one of a protruded block,a retaining block and a through hole integrally formed with oradditionally assembled to the body portion.
 23. The quick releaseconnecting device as claimed in claim 22, wherein the pivot portion isinserted in, snapped fitted onto, riveted to, expansion-fitted onto orscrewed to the second object, so as to be movably connected to thesecond object.
 24. The quick release connecting device as claimed inclaim 1, wherein the actuating retainer and the fixing member are madeof a material selected from the group consisting of a plastic materialand a metal material.